Although cancer, heart attacks, and strokes are more common and kill far more people, dementia remains America’s most feared illness. Our memories make us who we are, and losing them is terrifying. But dementia is a slow, progressive illness. Many people live for many years before it affects their ability to function. But even when it does, you are still you. You’ll have good days and bad days, just like always. Building a support network now can help prepare you for what’s ahead. Here’s how to do it.